Earnings Per Share Net Income for Earnings Per Share Calculations - Basic and Diluted (Details) - USD ($) $ in Millions	3 Months Ended
	Mar. 31, 2022	Mar. 31, 2021
Earnings Per Share [Abstract]
Income (loss) from continuing operations after income taxes	$ 577	$ 613
Net income (loss) Attributable to Noncontrolling Interest, Continuing Operations	3	3
Net income (loss) from Continuing Operations Available to Common Shareholders	574	610
Income (loss) from discontinued operations after income taxes	(10)	(10)
Net income (loss) Available to Common Stockholders	$ 564	$ 600